Question

If |A|=2 and |B|=4 and angle between then is 60∘ then |A-B|

Answer 1

Answer:

|A−B|= √(A²+B²−2ABcosθ)

= √(4+16−2×2×4×1/2)

= √12 = 2√3

Answer 2

Step-by-step explanation:

Given |A| = and |B| =4 <br> (a)

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Option (a) matches with option (ii). <br> (b)

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Option (b) matches with option (i). <br> (c)

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Option (c) matches with option (iv).(d)

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